var express = require('express');
var path = require('path');
var cookieParser = require('cookie-parser');
var logger = require('morgan');
var session = require("express-session")

var indexRouter = require('./routes/index');
var usersRouter = require('./routes/users');
var menuRouter = require('./routes/menu');
var cityRouter = require('./routes/city');



var app = express();
// 配置session
app.use(session({
        secret: "dfjdlfajdfafdafadfadfaf",
        cookie: { maxAge: 1000 * 60 * 60 * 24 },
        resave: true,
        saveUninitialized: true,
    }))
    /* 后台开允许跨域 */
app.all('*', (req, res, next) => {
    const { origin, Origin, referer, Referer } = req.headers;
    const allowOrigin = origin || Origin || referer || Referer || '*';
    res.header("Access-Control-Allow-Origin", allowOrigin);
    res.header("Access-Control-Allow-Headers", "Content-Type, Authorization, X-Requested-With");
    res.header("Access-Control-Allow-Methods", "PUT,POST,GET,DELETE,OPTIONS");
    res.header("Access-Control-Allow-Credentials", true); //可以带cookies
    res.header("X-Powered-By", 'Express');
    if (req.method == 'OPTIONS') {
        res.sendStatus(200);
    } else {
        next();
    }
});

app.use(logger('dev'));
app.use(express.json());
app.use(express.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));

app.use('/', indexRouter);
app.use('/users', usersRouter);
app.use('/menu', menuRouter);
app.use('/city', cityRouter);




module.exports = app;